NAVOSH 5.4 Flashcards
What is the primary OPNAVINST for NAVOSH?
OPNAVINST 5100.19
What are the Command responsibilities for the respiratory protection program?
CO - shall appoint protection manager
Resp Protection Prog Manager (RPPM)
- required to complete training within 3 mo of assuming position.
- ensure accurate guidance for resp protection
- provide guidance on stock levels with SUPO
- Ensure training for all
- ensure proper fit testing and QA of air quality
Dept Head/DIVO responsibilities to respiratory program?
- Provide equipment
- ensure proper training/fitting/med qualification
- ensure use
Med Dept Rep for respiratory program req’s
- Conduct periodic evals
- medically certify qualified individuals
- Assist in identifying/evaluating hazards and appropriate respirators
What are the requirements for respirator use?
- Medical screens for no limiting conditions
- current annual pha
Which shipboard personnel do not need medical qualification or fit testing?
Fire fighting personnel
Who is the examiner for the respiratory protection program?
Physician/nurse, PA, prev med tech, or IDC
What are the types of dispositions of personnel?
- Qualified without restrictions
- Qualified with restrictions
- Not medically qualified
- Med Rep must sign request
What are aerosols? *****
ANy material dispensed from a pressurized container using gas propellant
What are Contaminants?
Materials not normally present in the atmosphere, harmful to anyone who breathes it
What is dust? *****
Small solid particles from larger particles by process of crushing, grinding, or expulsion
What are fumes?
Small particles, <1 micrometer, formed of volatilized solids, using metals.
What are fumes?
Small particles, <1 micrometer, formed of volatilized solids, using metals.
What is gas?
Material under normal conditions of temp and pressure tends to occupy entire space.
WHat is mist?
divided liquid droplets suspended in air generated by condensation/atomization
What is an oxygen deficient atmosphere? *****
- insufficient O2 to support life
- caused by oxidization, dilution, or displacement
- must be 19.5% to use in air-purifying respirator
what is smoke?
carbon/soot particles less than 0.1 micrometers from combustion
*** when is an atmosphere immediately dangerous to life or health? **
WHen the concentration/contaminant can produce immediate irreversible debilitating effect on health.
What is vapor?
Gaseous state of substance that is normally liquid at room temp.
What are engineering controls?
Vent systems
- can be used in NBC/CBR environments
Exhaust
- Forced air supply, damage control gear
What is the CO’s responsibility for gas free medical surveillance and Physical exam?
- Adequately staffed with trained personnel
- Ensure all personnel comply with program req’s
Safety officer role with Gas free med surveillance
Evaluate program annually
Medical dept Rep for gas free medical surveillance/physical exam?
- Advise GFE if there is a victim, proper aid once victim is removed
- monitor victim use of EBA/equipment and advise of replacement
What are the three basic types of respirators?
- air purifying
- atmosphere supplied air
- SCBA
Air purifying respirators do what?
- Remove contaminants through filter/absorption
- adequate O2 @ 19.5%
- Full face respirator = higher degree of protection
DO surgical masks provide protection against air contaminants?
NO, only for medical/dental use
- never use them for an air purifying respirator
Should military gas masks be used in place of air purifying filters?
No, dumbass they are for CBR
Should military gas masks be used in place of air purifying filters?
No, dumbass they are for CBR
What are the two types of categories for air purifying respirators?
- Particulate air-purifying respirator - uses cartridges, filters, pre-filters against aerosols
- Gas and vapor air-purifying respirator - uses cartridges/canisters for adsorption/absorption
WHat are combination cartridges and canisters?
Combine the removal capabilities of two or more types in one
Pre-filters do what?
Protect against aerosols with volatile solvent
- another level of protection
What does an atmosphere-supplying respirator do?
- Protects users by supplying O2 for maintenance of life
- used when contaminant has no warning property
- high concentrations of contaminant
- * Environment is immediately dangerous to life or health (IDLH)*
WHat are the two types of supplied-air respirators?
Hose mask respirator
Air-line respirator
Hose mask respirator does what?
air supplied by blower, being removed by fleet because is offers no advantage over counterpart
Air-line respirator and SCBA’s have three categories, what are they?
Demand, pressure demand, and continuous flow
Demand respirator benefits?
- Air on demand
- Negative pressure within face piece
Pressure demand benefits?
- Maintains continuous positive pressure
- prevents contaminant leakage into mask
Continuous flow benefits?
- Face piece, helmet, hood, or suit
- provides continuous flow of air
- Prevents inward contamination
CLosed circuit SCBA types?
- O2 provided by HP O2 or liquid O2
- Water vapor exhaled to demand O2 from canister
* ** do not use where flammableareas, canister generates heat***
Open circuit SCBA
- air expelled into atmosphere
Open circuit SCBA uses?
- Demand
- Pressure demand
- Emergency escape devices
- Emergency escape breathing device (EEBD)
** EEBD uses? **
- developed for confined spaces in the Navy
- short duration of use for escape NOT ENTRY INTO SPACES
Cleaning/Sanitizing respirators???
- Temps above 110 F avoid
- 2 minutes in 50ppm solution of Iodine
- rinse with warm water about 100 F
- air dry in uncontaminated clean room
Storage or respirators?
- Place in clean bag with seal
- Ensure completely dry prior
- Store flat, without crowding so face-piece is not deformed
Fitting of respirators?
- Quantitative fit test prior to issue, then annually.
- Wear full ppe during fit to determine obstructions
Authorized Fit Testers?
Persons trained as per Chapter B0612
Qualitative Fit Testing?
- * Isoamyl acetate*
- Saccharin mist
- irritant smoke
- ** can only be performed on shore testing. ***
What is the formal respirator cert Medical Matrix form?
Respirator Cert Exam 716
